Burglar-alarm.



PATENIED JAN. 6, 1903'.

No. 717,921. y 7

P. PUSGHNERUS. BURGLAR ALARM. APPLICATION FILED JUNE 4, 1902.

H0 MODEL. 1

WITNESSES:

alarm being indicated in dotted lines.

UNTTED STATES FRANZ PUSOHNERUS, OF

PATENT @FFICE.

BROOKLYN, NEW YORK.

BURGLAR-ALARM.

SIEECIFICATION forming part of Letters Patent No. 717,921, dated January 6, 1903.

Application filed June 4, 1902. $erial No. 110,190. (No model.) i

To all whom it may concern:

Be it known that I, FRANZ PUSOHNERUS, a citizen of the Empire of Germany, residing in New York, borough of'Brooklyn, and State of New York, have invented certain new and useful Improvements in Burglar-Alarms, of which the following is a specification.

The object of this invention is to provide a burglar-alarm capable of being quickly and conveniently set for action or set out of action from either. the inside or outside of the room to be protected, so as to sound the alarm or so as to permit the opening the doorby the owner or tenant of the room without sounding the alarm. For this purpose the invention consists of a burglar-alarm comprising a suitable alarm device, such as a bell and its hammer, actuated by a suitable escapement mechanism, a controlling lever connected with said alarm device, a tripping-finger pivoted to said lever, so as to be swung laterally into or out of the path ofa suitable spring-actuated catch located on the door, and means connected with said tripping-finger and extending through the stile of the door for operating said finger in either direc-; tion; and the invention consists, further, of certain details ,of construction and combinations of parts, which will be fully described hereinafter and finally pointed out in the claims.

In the accompanying drawings, Figure 1 is an elevation ofa door and door-casing at the inner side of the room to be protected, showing my improved burglar-alarm applied for use. Fig. 2 is an elevation of the door and door-casing from the outside, parts of the Fig. 3 is a detail plan view, partly in section, of a part of the alarm on a larger scale, showing the controlling-lever and tripping-finger, together with the alarm-bell, hammer, and connected parts. Fig. lis aside view of the parts illustrated in Fig. 3, the door-casing being shown in section; and Fig. 5 is a horizontal section on line 5 5,Fig. 1, drawn on a larger scale than said figure.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A indicates the door, and A the door-casing. On the upper part or top bar a of the door-casin g is mounted on a suitable removable base plate a an alarm-bell a and in a casing o the mechanism for ringing said'alarm-bell. This mechanism comprises a suitable base-plate b, a top plate of the same form, a main shaft 19 mounted between said plates and provided with a square outer end for receiving a suitable winding-key, a main spring b on the shaft, a gear-wheel b on the shaft, an escapement-wheel b mounted on a counter-shaft b a pinion b on the counter-shaft and meshing with the gear-wheel Z7 and an escape ment-anchor b engaging the escapementwheel 5 The gear-wheel and shaft are provided with the usual ratchet and click b To the shaft 0 of the anchor is attached the arm a of the hammer c. The hammer and arm extend at one side of the shaft 0. A coil-spring 0 arranged on the shaft and connected with the same and with the base-plate, serves to balance the weight of the hammer and arm, so that the same operate easily and with regular motion. In Fig. 3 the casing of and top plate are removed to show the mechanism.

To the shaftc is attached a trip-arm d,which extends in lateral direction from the shaft.

d indicates the coutrolling-lever, which is mounted on the base-plate by means of a suitable bearing 01*, so as to-swing in vertical direction. Said lever is provided at its outer end with anupturned hook (1 adapted to engage the tripping-arm 61 when the same is in retracted position and by its engagement therewith to hold the anchor in permanent engagement at one end with the escapementwheel b", thereby locking the escapement mechanism and preventing the operation of the same. The upwardly-extending book (1 is made of such width that when the arm is located within or at the inner side of the same one end of the anchor is locked in engageof the same, the arm may be provided beyond the hook with a stop finger or stud d of suitable length, which arrests the lever by abutting with the arm. To the opposite or for- Ward end of the controlling-lever is pivoted a laterally swinging tripping finger 01 and upon the door Ais arranged a spring-actuated catch or bolt d, which projects normally above the upper edge of the door and is provided with an inclined upper surface, so as to engage the tripping-finger, and thereby operate the controlling-lever when the door is being opened while passing the lever readily and without operating the same when the door is being closed. As, however, this engagement of the catch with the tripping-finger when closing the door might operate the controlling-lever in return direction into engagement with the arm cl, and thereby stop the ringing of the alarm, I provide a springactuated detent (1 which engages the lever, the spring d of said detent, which serves to support the same, being vertically arranged, so as to be non-yielding in vertical direction. Said detent is located so as to bear upon and engage the controlling-lever (1 when the same is depressed out of engagement with the triparm d, so as to hold said lever in depressed position and permit the continued operation of the escapement mechanism and the ringing of the bell. For setting the device for operation the detent is provided with a thumbpiece (1 extending into convenient position, so that by pressing upon the same the detent is disengaged from the controlling-lever and the latter permitted to be raised again into engagement with the tripping-arm d. The laterally-swinging tripping-finger d is adapted to be swung into and out of the path of the catch d so that when the door is opened thealarm either will or will not be set off, accord-- ing as the trippin g-fi nger is in or out of the path of the catch. For providing suitable means whereby the tripping-finger may be swung into either position as desired and retained in said position and means whereby this operation may be performed either from the inside or the outside of the room to be protected 1 arrange upon one of the stiles of the door-casing, preferably the rear stile e, a vertical rod or rock-shaft 6', provided at its upper end with a forwardly-extending arm or crank 6 to which is pivoted a connecting-rod 6 which is pivoted at its opposite end to the tripping-finger (F. The rock-shaft is supported in an upper bearing 6 and at its lower end in a bearing 6 of the housing (2 of a suitable double-acting spring-actuated retaining device 0, secured to the stile e, preferablynear the floor of the room. The retaining device consists of the housing a, a horizontal swinging lever (2 pivoted in the housing at one end of the same,

a pin a", connected with the lever andextending at an angle from the pivot of the same toward the opposite end of the housing, and a compressible coil-spring f between said pin and the end of the housing and preferably retained in position at the housing end by a suitable stud f, projecting into the housin To one end of the lever e is connected by a pin-and-slot connection an arm or crank f which is rigidly secured to the rock-shaft e, and to one end of the lever is pivoted a button f and to the other end a similar button f both of which extend through the stile of the door-casing to the outside of the same. When one of the buttons is pressed inwardly, the lever e is thereby operated and the pin 2 thrown over to the other side of the pivot of the lever and retained there by the spring f. When the other button is operated, the pin is thrown to the opposite side and retained at that side. The lever is thus retained in the position to which it is moved and the rockshaft and tripping-finger likewise retained, the finger in one case being set in the path of the catch (1 and in the other case set out of the path of the same.

For setting the apparatus from the interior of the room I arrange upon the rock-shaft e a cross-bar 6 the same being preferably arranged near the floor of the room and of such shape as to be operated conveniently by the foot of the user.

If desired, the buttons f f may be omitted, and in this case the alarm can be set only from the inside of the room. In case the buttons are employed, however, I prefer also to arrange a second retaining device G and buttons g g, projecting through the stile in acouspicuous position upon the outside of the door-casing, which device and buttons are a false set and not connected with the rock-shaft, the true buttons J" being arranged, preferably, near the floor or in any other suitable non-conspicuous position. The buttons may be arranged either horizontally, as shown,or one above the other. The true buttons permit the setting of the alarm for action when the owner, for example, closes the room and leaves it, and they permit him to enter it without setting 01f the alarm. The false buttons attract the attention of any intruder seeking to enter and, knowing the fact of the alarm,

he operates the false buttons before entering.

the same may be connected with a controlling-lever which instead of being provided at its rear end with means for releasing a springactuated alarm may be provided with means for closing an electric circuit, so that an electric bell located at any desired point is sounded, this arrangement being desirable for protection of stores, stables, &c. In the drawings, n n indicate the terminals of such a circuit adapted to be bridged by the lever, which is made of conducting material.

a indicates the bell, n the battery, and n the conducting-Wire.

In case the mechandevice, a spring-actuated catch on the door,

a controlling-lever for said alarm device, a tripping-finger connected with said controlling-lever and laterally shiftable into or out of the path of said catch, and means for retaining said finger in engaging or in shifted position, substantially as set forth.

2. A burglar-alarm, consisting of an alarm device, a spring-actuated catch on the door, a controlling-lever for said alarm device, a tripping-finger connected with said controlling-lever and laterally shiftable into or out interior of the room for shifting said finger in.

either direction, substantially as set forth.

4. A burglar-alarm, consisting of an alarm device, a spring-actuated catch on the door, a controlling-lever for said alarm device, a tripping-finger pivoted to the forward end of the same and laterally shiftable into or out of the path of said catch, a rock-shaft on the door-stile, a crank on said shaft, a connecting-rod connecting the same With the tripping-finger, a double-acting spring-actuated retaining device connected with the rockshaft, and buttons extending from said retaining device through the door-stile to the ex.- terior of the room, substantially as set forth. 5. A burglar-alarm, consisting of an alarm device, a spring-actuated catch on the door, a controlling'lever for said alarm device, a tripping-finger pivoted to the forward end of the same and laterally shiftable into or out of the path of said catch, a rock-shaft on the doorstile, a crank on said shaft, aconnecting-rod connecting the same with the tripping-finger, a double-acting spring-actuated retaining device connected with the rock-shaft, buttons extending from said retaining device through the door-sti1e to the exterior of the room, and a cross-bar on said rock-shaft at the interior of the room, substantially as set forth.

6. In a burglar-alarm, the combination, with a spring-actuated alarm having an oscillating escapement-anchor and a ham mer-arm and hammer secured to and extending from the shaft of said anchor, of a trip-arm extending from said shaft, a controlling-lever provided with a hook at its rear end adapted to engage the trip-arm for retaining the anchor in engagement with the escapement- Wheel, and a detent for retaining the controlling-lever in disengaged position, substantially as set forth.

7. In a burglar-alarm, the combination, with a spring-actuated alarm having an oscillating escapement-anchor and a hammer-arm and hammer secured to and extending from the shaft of said anchor, of a trip-arm ex tending from said shaft, and a controllinglever provided with a hook at its rear endadapted to engage the trip-arm, and with a stop-finger projecting at the rear side of the hook, said hook being adapted to retain the anchor in engagement with the escapementwheel when the trip-arm is located at either side of the same, substantially as set forth.

8. Aburglar-alarm, consistingofamechanically-operated alarm device, an electricallyoperated alarm device, a spring -actuated catch on the door, a controlling-lever for said alarm devices, a tripping-finger connected with said controlling-lever and laterally shiftable into or out of the path of said catch, and means for retaining said finger in engaging or i in, shifted position, substantially as set forth.

. In testimony that I claim the foregoing as i my invention I have signed my name in presence of two subscribing Witnesses. FRANZ PUSOHNERUS.

Witnesses:

PAUL GOEPEL, JOSEPH H. NILES. 

